var path = require('path')
var webpack = require('webpack')
const CompressionPlugin = require("compression-webpack-plugin")
// var px2rem = require('postcss-px2rem');

module.exports = {
  entry: './src/main.js',
  // externals: {
  //   'vue': 'Vue',
  // },
  output: {
    path: path.resolve(__dirname, './dist'),
    publicPath: '/dist/',
    filename: 'build.js',

    // publicPath: './dist/',
    // filename: '[hash].js'
  },
  module: {
    // loaders: [
    //       {
    //         test: /\.css$/,
    //         loader: "style-loader!css-loader!postcss-loader"
    //       }
    //     ],
    rules: [
      {
        test: /\.css$/,
        use: [
          'vue-style-loader',
          'css-loader',
          "less-loader"
        ],
      },
      {
        test: /\.less$/,
        use: [{
          loader: "vue-style-loader"
        }, {
          loader: "css-loader"
        }, {
          loader: "less-loader",
          options: {
            javascriptEnabled: true
          }
        }]
      },
      {
        test: /\.scss$/,
        use: [
          'vue-style-loader',
          'css-loader',
          'sass-loader'
        ],
      },
      {
        test: /\.sass$/,
        use: [
          'vue-style-loader',
          'css-loader',
          'sass-loader?indentedSyntax'
        ],
      },
      {
        test: /\.vue$/,
        loader: 'vue-loader',
        options: {
          loaders: {
            // Since sass-loader (weirdly) has SCSS as its default parse mode, we map
            // the "scss" and "sass" values for the lang attribute to the right configs here.
            // other preprocessors should work out of the box, no loader config like this necessary.
            'scss': [
              'vue-style-loader',
              'css-loader',
              'sass-loader'
            ],
            'sass': [
              'vue-style-loader',
              'css-loader',
              'sass-loader?indentedSyntax'
            ]
          }
          // other vue-loader options go here
        }
      },
      {
        test: /\.js$/,
        loader: 'babel-loader',
        exclude: /node_modules/
      },
      {
        test: /\.(png|jpg|gif|svg|eot|woff|woff2|ttf)$/,
        loader: 'file-loader',
        options: {
          name: '[name].[ext]?[hash]'
        }
      }
    ]
  },

  // postcss: function() {
  //   return [px2rem({remUnit: 75})]; //设置基准值，75是以iphone6的标准
  // },
  resolve: {
    alias: {
      'vue$': 'vue/dist/vue.esm.js'
    },
    extensions: ['*', '.js', '.vue', '.json']
  },
  devServer: {
    historyApiFallback: true,
    noInfo: true,
    overlay: true,
    // port:8888,
    // proxy: {
    //   '/api': {
    //     target: 'http:/192.168.43.28:8080',
    //     changeOrigin: true,
    //     pathRewrite:{
    //       '^/api':''
    //     }
    //   }
    // }
  },
  performance: {
    hints: false
  },
  devtool: '#eval-source-map'

}

if (process.env.NODE_ENV === 'production') {
  module.exports.devtool = '#source-map'
  // http://vue-loader.vuejs.org/en/workflow/production.html
  module.exports.plugins = (module.exports.plugins || []).concat([
    new webpack.DefinePlugin({
      'process.env': {
        NODE_ENV: '"production"'
      }
    }),
    new webpack.optimize.UglifyJsPlugin({
      sourceMap: false,
      compress: {
        warnings: false
      }
    }),
    new webpack.LoaderOptionsPlugin({
      minimize: true
    }),
    new CompressionPlugin({
      test:/\.js$|\.html$|.\css/, //匹配文件名
      threshold: 10240,//对超过10k的数据压缩
      deleteOriginalAssets: false //不删除源文件
    }),
    new webpack.optimize.UglifyJsPlugin({
      compress:{
        warnings: true,
        drop_console: true
      }
    })
  ])
}
